Google
http://www.guardian.co.uk/technology/2010/mar/23/google-china-censorship-hong-kong
http://googleblog.blogspot.com/2010/01/new-approach-to-china.html
http://mashable.com/2010/01/12/google-china-attack/
http://buzz.blogger.com/2011/05/blogger-is-back.html
Facebook
http://powerwall.msnbc.msn.com/business/the-pr-hacks-behind-facebooks-google-smear-1688232.story
http://www.engadget.com/2011/05/12/facebook-admits-hiring-pr-firm-to-smear-google/
http://www.thedailybeast.com/blogs-and-stories/2011-05-13/facebook-and-pr-agency-spar-over-anti-google-smear-campaign/
http://www.huffingtonpost.com/2011/05/12/facebook-google-pr_n_861165.html
http://www.thedailybeast.com/blogs-and-stories/2011-05-12/facebook-busted-in-clumsy-smear-attempt-on-google/
http://www.guardian.co.uk/technology/2010/mar/23/google-china-censorship-hong-kong
http://googleblog.blogspot.com/2010/01/new-approach-to-china.html
http://mashable.com/2010/01/12/google-china-attack/
http://buzz.blogger.com/2011/05/blogger-is-back.html
http://powerwall.msnbc.msn.com/business/the-pr-hacks-behind-facebooks-google-smear-1688232.story
http://www.engadget.com/2011/05/12/facebook-admits-hiring-pr-firm-to-smear-google/
http://www.thedailybeast.com/blogs-and-stories/2011-05-13/facebook-and-pr-agency-spar-over-anti-google-smear-campaign/
http://www.huffingtonpost.com/2011/05/12/facebook-google-pr_n_861165.html
http://www.thedailybeast.com/blogs-and-stories/2011-05-12/facebook-busted-in-clumsy-smear-attempt-on-google/